FI69783C - TRUMPRESS FOER AVSKILJANDE AV VAETSKA FRAON FASTA SUBSTANSER - Google Patents

Description

69783

DRUM PRESS FOR SEPARATION OF LIQUID FROM SOLIDS - DRUM PRESS FOR REFRIGERATION OF VÄTSKA FRÄN FASTA SUBSTANSER

The present invention relates to a drum press for separating a liquid from a solid, which drum press consists of two cylindrical, perforated drums rotating nested around different centers, between the sheath surfaces of which the liquid is pressed out, and which outer drum is provided clearance with respect to the rotating outer drum.

In cylindrical drum presses currently in use, the inner drum is often non-perforated because it is difficult, if not impossible, to drain the liquid from the inner drum due to the design of the presses. The non-perforated inner drum in the press almost doubles the hole area in the compression situation, and using the same compression pressures as in a press with a non-perforated inner drum, a better compression result is obtained because the liquid can migrate from the compression A press equipped with a sister drum produces about twice the amount of material to be compressed with a similar compression result.

The object of the present invention is to provide a new type of drum press. The drum press according to the invention is characterized in that the shaft-mounted inner drum passes through the non-rotating end plates of the outer drum with the required clearance and its casing and shaft end plates are provided with openings known per se on the casing side. The liquid compressed in the inner drum can thus be easily removed with a simple solution.

The invention will now be described, by way of example, with reference to the accompanying drawings, in which

Figures 1 and 2 show a drum press in which the outer drum is moved and the inner drum and the end plates of the outer drum remain in place.

Figures 3 and 4 show a drum press in which the outer drum remains stationary and the inner drum and the end plates of the outer drum move together.

The press is formed by two cylindrical, perforated drums 1, 5 of different sizes, perforated around different centers, between which the liquid is pressed out of the material to be pressed. The liquid exits the material to be compressed through the holes in the jacket surfaces of the outer and inner drums. The outer drum 1 is provided with non-rotating end plates 2 which are fitted with the necessary clearance relative to the rotating outer drum. The outer drum rotates on the bogie gears 3 at the drum end1 flanges. The gears are provided with a drive 4 if necessary. The shaft-mounted inner drum 5 passes through the non-rotating end plates of the outer drum with the required clearance and its casing and shaft-end ends 6 are provided with openings on the casing side. The inner drum is equipped with a drive 7 and is mounted on a shaft. In order to obtain the desired compression pressure, the material to be compressed between the drums is loaded from one drum against the other using known hydraulic or mechanical loading devices 8. The circumferential speed of the drums is selected according to the material to be compressed so that the best possible result is obtained. the material to be compressed is fed to the press with a feed hopper 9 or directly with a screwdriver. The extrudate is removed using a screw 11a 10 using screws if necessary.

Claims (1)

69783 CLAIM A drum press for separating a liquid from a solid, which drum press consists of two cylindrical, perforated drums (1, 5) rotating nested around different centers, the material being pressed between the jacket surfaces (1) with end plates (2) fitted with the necessary clearance relative to the rotating outer drum, characterized in that the shaft inner drum (5) passes through the non-rotating end plates (2) of the outer drum with the required clearance and its end plates (6) fixed to its casing and shaft openings through which the liquid entering the drum during compression can flow freely out of the drum.